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List of 13-letter words containing

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There are 8 thirteen-letter words containing A, C, I, 2S, U and Y

AUTOCATALYSISautocatalysis n. (Chemistry) catalysis of a reaction by one of its products.
AUTOCATALYSIS n. the catalysis of a reaction by a product of that reaction.
CASUISTICALLYcasuistically adv. (Manner) Using casuistry or casuistics.
casuistically adv. (Domain) From the perspective of casuistics or casuistry.
CASUISTICAL adv. relating to casuistry, plausible but flawed moral reasoning, also CASUISTIC.
ICHTHYOSAURUSichthyosaurus n. (Archaic) Alternative form of ichthyosaur.
ichthyosaurus n. Any members of the genus Ichthyosaurus.
Ichthyosaurus prop.n. A taxonomic genus within the family Ichthyosauridae – large, extinct marine reptiles.
PRESBYACOUSISPRESBYACOUSIS n. progressive loss of hearing with advancing old age, also PRESBYACUSIS, PRESBYCOUSIS, PRESBYCUSIS.
QUASICRYSTALSquasicrystals n. Plural of quasicrystal.
quasi-crystals n. Plural of quasi-crystal.
QUASICRYSTAL n. a body of solid material that resembles a crystal in being composed of repeating structural units but that incorporates two or more unit cells into a quasiperiodic structure.
SUBSPECIALITYsubspeciality n. (UK) Alternative spelling of subspecialty.
SUBSPECIALITY n. a subordinate speciality, also SUBSPECIALTY.
SUPERPHYSICALsuperphysical adj. Above or beyond physics; not explainable by physical laws.
SUPERPHYSICAL adj. being above or beyond the physical world or explanation on physical principles.
UNNECESSARILYunnecessarily adv. In an unnecessary way; not by necessity.
unnecessarily adv. To an extent beyond what is needed.
UNNECESSARY adv. not necessary.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 71 words
  • Scrabble in French: 7 words
  • Scrabble in Spanish: 18 words
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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